#include <iostream>
using namespace std;
int main15()
{
	// ! 非
	cout << "true = " << true << "\t!true = " << !true << endl;

	// && 与
	cout << "true && true = " << (true && true) << "\ttrue && false = " << (true && false) << "\tfalse & false " << (false && false) << endl;
	
	// || 或
	cout << "true || true = " << (true || true) << "\ttrue || false = " << (true || false) << "\tfalse || false " << (false || false) << endl;

	system("pause");
	return 0;
}